Rockwool

Transaction in Own Shares • Dec 9, 2020

Company announcement for ROCKWOOL International A/S Release no. 66 – 2020 to Nasdaq Copenhagen

9 December 2020

ROCKWOOL International A/S – transactions in connection with share buy-back programme

As mentioned in announcement no. 2/2020, ROCKWOOL International A/S has initiated a share buy-back programme which will run from 6 February 2020 until 5 February 2021. During this period, the Company will buy own shares for up to a maximum of EUR 64 million under the programme.

The programme is implemented in accordance with EU Commission Regulation No 596/2014 of 16 April 2014 and EU Commission Delegated Regulation No 2016/1052 of 8 March 2016, which together constitute the "Safe Harbour" regulation.

The following transactions have been executed during the period 2 – 8 December 2020:

Date	Number of A shares	Average purchase price A shares (DKK)	Aggregate amount, A shares (DKK)
[Accumulated, last	18,512		26,405,350
announcement]
2 December 2020
3 December 2020
4 December 2020
7 December 2020
8 December 2020
Accumulated under the	18,512		26,405,350
programme (A shares)

Date	Number of B shares	Average purchase price B shares (DKK)	Aggregate amount, B shares (DKK)
[Accumulated, last	262,215		413,134,847
announcement]
2 December 2020	400	2,178.63	871,452
3 December 2020	400	2,151.63	860,652
4 December 2020	300	2,131.04	639,312
7 December 2020	300	2,120.03	636,009
8 December 2020	300	2,136.18	640,854
Accumulated under the	263,915		416,783,126
programme (B shares)

In addition, the Company has in accordance with announcement no. 48/2020 completed the purchase of 57,557 A Shares for a total of EUR 16 million from the ROCKWOOL Foundation.

ROCKWOOL International A/S Hovedgaden 584, DK-2640 Hedehusene, Denmark T (+45) 46 56 03 00 E info@rockwool.com

With the transactions stated above, ROCKWOOL International A/S owns 76,069 A shares and 322,243 B shares corresponding to 1.81 percent of the Company's total share capital.

An overview showing the transaction data for the period 2 – 8 December 2020 is enclosed.

Further information: Thomas Harder

Director, Group Treasury & Investor Relations ROCKWOOL International A/S +45 46 55 86 77